Let's say i have a file that looks like this:
element1,element2
element3,element4
element5,element6
How can I read this file in bash and store it in an array as follows:
array={element1,element2,element3,element4,element5,element6}
Can someone help me with the code? Thanks!
You can ignore read altogether and simply use redirection after setting IFS, e.g.
$ IFS=$', \t\n'; a=($(<file)); declare -p a
declare -a a='([0]="element1" [1]="element2" [2]="element3" [3]="element4" \
[4]="element5" [5]="element6")'
Instead of reading line by line, then spliting by comma, you could do:
IFS=,$'\n' read -d '' -r -a array <file
This will:
NUL character as line delimiter (-d ''), and this way (if your file does not contain null characters) read the complete file at onceIFS, which is set to comma and newline, IFS=,$'\n'array.Output:
$ printf "%s\n" "${arr[@]}"
element1
element2
element3
element4
element5
element6
You can use this bash code:
while IFS='' read -r line || [[ -n "$line" ]]; do
array+=("$line")
done < "$1"
echo ${array[@]}
This read the content of the file that you specify by argument line and reads line by line while stores the values in a bash array.
Bye!
